Answer:
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Answer : The mass of potassium phosphate needed will be 3.98 grams.
Explanation : Given,
Molarity of potassium phosphate = 0.75 M = 0.75 mole/L
Molar mass of potassium phosphate = 212.27 g/mole
Volume of solution = 25.0 mL = 0.025 L (conversion used : 1 L = 1000 mL)
Molarity : It is defined as the number of moles of solute present in one liter of solution.
In this problem solute is, potassium phosphate.
Formula used :
Now put all the given values in this formula, we get:
Therefore, the mass of potassium phosphate needed will be 3.98 grams.
Answer:
Longer hydrocarbon molecules have a stronger intermolecular force. More energy is needed to move them apart so they have higher boiling points . This makes them less volatile and therefore less flammable
Answer
there are to answers one is an answer to a problem or a mixture of chemicals
Explanation:
Explanation:
1) A balanced equation for the reaction.
2) The name of the soluble slat produced by reaction between magnesium and hydrochloric acid is magnesium chloride.
Magnesium chloride =
3)Yes, chemical change has been taking.
This is because rearrangement of atom is taking place which resulted in formation of hydrogen gas amd magnesium chloride.
4) Moles of hydrogen gas produced = 2 mole
According to reaction, 1 mole of hydrogen gas is obtained from 2 moles of HCl.
Then 2 moles of hydrogen gas will be obtained form:
of HCl
4 moles of acid has reacted.